Three new graduates from the H.I.V.E. Academy, Gizmo, Jinx, and Mammoth, are hired by Slade to ambush the Titans. The Titans try to stop them, but Robin is lost during the fight and Titans Tower is taken over by the H.I.V.E. students.

Raven's creepy tantrum of crackling black energy leaves Dr. Light begging for mercy, and the Titans see a new side of Raven, her temper. But, when Cyborg and Beast Boy find a Mysterious Mirror in Raven's room, they're suddenly transported to a strange nightmare world that's somehow connected to Raven.

A thief called Red X, who knows the Titans’ every weakness, shows up. Every time the Titans try to catch him, they are badly defeated. Meanwhile, Robin - who has been obsessed with capturing Slade - isolates himself more and more from the team.

Slade threatens to use a chronoton detonator, a device which can destroy the entire city if triggered. While Robin goes after Slade, the other Titans try to disarm the detonator. But then it turns out that Slade has other aims in mind than the destruction of the city.

Being ignored by his busy teammates, Beast Boy feels left out, so he wanders the town eventually turning into a green dog. To his surprise he crashes into another green dog that is being pursued by a flying saucer. The saucer picks Beast Boy up by mistake, and its owner gives Beast Boy more attention than he would like.

The Titans pick up a horror movie called Wicked Scary. After watching it, they are scared out of their wits, although Raven refuses to admit this to the others. During the night, strange things start to happen in the Tower.

Terra is ready to join the team after getting the chance to practice her powers, However, other members of the team wonder if they have made a huge mistake. Raven doesn't want Terra back. Can Terra prove to the team that she can be trusted with her powers?

When Robin accidentally wrecks his R-Cycle while pursuing a nasty thug named Johnny Rancid, he winds up with his arm in a cast and doubt in himself. The good news is he gets a visit from his number one fan, a short little weirdo name Larry the Titan. The bad news is Larry's reality-bending powers than they can fix. Can Robin get his nerve back and take down Johnny Rancid before Larry's "help" breaks the fabric of time and space and destroy reality as we know it?

When the H.I.V.E. shows up causing havoc, the Titans get straight to the job. Unfortunatley, they escape, but Robin was able to plant a locator device onto Jynx just in time. The Titans send Cyborg - disguised as a strong man known as ""Stone"" - to infilitrate the H.I.V.E. academy and find out what they're up to.

When Beast Boy mistakes Cyborg's system recharger for a video game, he accidentally infects it with a nasty computer virus. The virus quickly spreads to Cyborg himself causing the half-teen/half-machine to go haywire, and the only way to stop the virus is to shrink down to microscopic size and go on a fantastic voyage inside Cyborg. Does Amoeba Beast Boy have the brains to fix Cyborg's brains before a crazed Cyborg destroys the city?

The Titans' Fourth of July festivities are interrupted when Mad Mod comes to the party uninvited, declaring the American Revolution a hoax and reclaiming the city for jolly old England. To make matters worse, old Mad Mod steals Robin's youth. Can the remaining Teen Titans devise a plan to take back their city and save their leader?

Starfire adopts a weird mutant silkworm named Silkie as a pet, but when she feeds him some alien food from Tamaran, Silkie has an unexpected--and monstrous--growth spurt. Can Starfire still keep her beloved worm?

The final battle continues between Cyborg and Brother Blood as well as the creation of a new branch of Titans.

It's Raven's birthday, but she is far from wanting to celebrate. But before Robin can learn why, the Titans receive a distress call and go to check it out. When they get there, they are greeted by none other than Slade, back from the dead. But Slade seems to have new powers along with a strange red mark on his head and he has a message for Raven that he is going to deliver, no matter what.

A brave hero from outer space called Val-Yor comes to Earth, and asks for the Titans help in defeating an otherworldly menace known as The Locrix. But according to Val-Yor, Starfire may be the real problem...

Wishing to get the most he can out of his time, Cyborg installs a special Max-7 chip into his head which throws him into overdrive, allowing him to do a lot of things, very fast. But when the self-copying Billy Numerous starts stealing everything in town, even the Max-7 may not be enough to stop him.

Robin, Starfire, Cyborg, and Beast Boy awake to a nightmare. Trigon has risen and he has ended the world. Every building is destroyed, and all life has been turned to stone. Due to one last gift of Raven's, the Titans have survived. Now, they must find a way to get Raven back, maybe she knows of a way to stop Trigon. But to do this, the Titans will have to accept help from their old enemy - Slade.

When Beast Boy's former team, The Doom Patrol, is in trouble, the Titans must embark on a daring mission to save them. Beast Boy explains that this can only mean one thing: the Doom Patrol's greatest foes are back. The Brotherhood of Evil has returned.

Control Freak returns to Titan Tower with "The Ultimate Titans Challenge," a series of events designed specifically to challenge the Teen Titans. But what happens to Control Freak's big plan when he finds himself facing not the "real" Titans -- but the Titans East?

With the other Teen Titans off fighting exciting battles with the Brotherhood of Evil, Raven is left with the worst task of all -- transporting three rambunctious future superheroes to safety. But this simple task turns into an adventure in babysitting as Raven and her young charges are chased through the Alps by the Brotherhood of Evil's Msr. Mallah.

How did Robin meet Starfire? What was Beast Boy's first joke? Why did Cyborg build his Sonic Cannon? When did Raven first call the Titans her friends? Return to the very beginning and see how it all started - from the word ""GO!""

After months of fighting the Brotherhood of Evil around the globe, the Teen Titans are finally back home. But a walk through the city reveals that things are no longer as they remembered. And while Beast Boy wants everything to be just like it was in the past, he has to face the fact that in life things change.